CONFINEMENT IN THE 3-DIMENSIONAL ANISOTROPIC T-J MODEL - A MEAN-FIELDSTUDY

We consider the anisotropic t-J model with the c-axis parameters t(c) and J(c) different from their in-plane counterparts, t and J. Within t he slave-fermion mean-field approximation it is shown that the spiral state exhibits charge-confinement in the intermediate delta regime. In the confined state the hopping amplitude <c(i sigma)(dagger)c(j sigma ) > = 0 along the c direction so that c-axis resitivity is infinite at T = 0.